Home / 145,095.57-217,386.09-123,819.75

Finding the Fourth Proportional to 145,095.57, 217,386.09 and 123,819.75

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Solution

The fourth proportional to 145,095.57, 217,386.09 and 123,819.75 is: 185,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,095.57 : 217,386.09 = 123,819.75 : x
  2. Step 2: Convert to fraction form
    145,095.57/217,386.09 = 123,819.75/x
  3. Step 3: Cross multiply
    145,095.57x = 217,386.09 × 123,819.75
  4. Step 4: Simplify right side
    145,095.57x = 26,916,691,317.28
  5. Step 5: Solve for x
    x = 26,916,691,317.28/145,095.57
  6. Step 6: Final answer
    x = 185,510.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.